
#header
{
    width:100%;
    height:80px;
}

#left
{
    float:left;
    width:600px;
}

#left img
{
    position: absolute;
    left:22px;
    top:8px;
    max-width: 10%;
    max-height: 10%;
}

#left input
{
    float:left;
    font-size:14px;
    font-family: Microsoft Yahei;
    margin-left:240px;
    margin-top:15px;
    height:30px;
    width:500px;
}

#right
{
    float:right;
}

#right button
{
    margin-top:16px;
    margin-right:21px;    
}

#main
{
    margin-left:20px;
    margin-right:20px;
    background: white;    
}

#source
{
    float:left;
    width:50%;
    height:calc(100% - 20px);
    width:calc(50% - 42px);
    margin:10px;
    border:none; 
    outline:none;
    resize:none;
    
}

#separate
{
    float:left;
    width:1px;
    margin-left:2px;
    margin-top:12px;
    height: calc(100% - 20px);
    background: #ccc;
}

#mark
{
    float:left;
    margin:10px;
    width:calc(50% - 10px);
    height:calc(100% - 20px);
    background: white;
    overflow: auto;
}